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A 2.45 kilogram steel ball strikes a wall with a speed of 10.0 m/s at an angle of 60.0 degree with the surface. It bounces off with the same angle and speed. If the ball is in contact with the wall for 0.195 seconds, estimate the average force exerted on ball by the wall?
tall corporation purchased 75 percent of light corporations voting common stock on january 1 20x2 at an amount equal to
At a particular instant in time an electromagnetic wave has an electric field which can be written E=(6.22N/C)x+(2.87N/C)y What is the magnitude of the magnetic field at this moment
Your professor enters the dogsled race during winter break. To getstarted, he pulls his sled, a mass 80 kg with a force of 180N at 20degrees to the horizontal. Find a) the work he does b) the final speed of the sled after it moves 30s
A 2.00 kilogram package is released on a 53.1 degree incline, L =4.14 meter from a long spring with force constant 120 N/m that is attached at the bottom of the incline. Find the speed of the package just before it reaches the spring
scenario a man begins pushing a box from rest up a ramp angled at 22 degrees from horizontal exerting a constant force
Kenny throws a basketball which has an initial speed v0. When the ball gets to its mininum speed sometime before striking the ground, What was the initial angle of the ball
You are asked to design a spring that will give a 1200-kg satellite a speed of 3.50 m/s relative to an orbiting space shuttle. What distance must the spring be compressed
A certain light truck can go around a flat curve having aradius of 150 m with a maximum speed of 34.5 m/s. With what maximum speed can it go arounda curve having a radius of 88.5m
A car is driving 22.7m/s flat ground drives off 42.3 m high cliff. How much time does it take to reach the ground.
A solar cell generates a potential difference of 0.094 V when a 560 ? resistor is connected across it, and a potential difference of 0.14 V when a 1100 ? resistor is substituted. What are the emf of the solar cell
1200 kg car at velocity 25m/s brakes and stop moving after 40m. What is the coefficient friction between the tires and road
An infinitely long wire is formed as in the diagram on your assignment. It is formed so that it has a circular portion of R = 50cm and the straight portion is located at a distance r from the center of the circular portion. Determine r (in cm) suc..
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